Hi James,
I have a Pro9000 (Mk1) and a Pro-100S. Many years ago I wasted heaps of paper and ink trying to get colours correct, using other printers.
The solutions was to use colour management. I am not sure what videos you are referring too, but if you check out Jose Rodriguez Youtube channel:
https://www.youtube.com/channel/UCz9YXaSulpM90vC24lmAeZAI believe he has a video on using Qimage to set up the printer using colour management. However, my first thoughts are:
- Have you adjusted your monitor?
- Did you create your own paper profile for the HP paper or did you download a profile?
It's unlikely HP offer a profile for a Canon printer, so if you downloaded one, where did you get it (them, one for each printer)?
Bruce